On Tue, Jul 9, 2024 at 6:31 AM Vincent Lefevre <vinc...@vinc17.net> wrote:
>
> As said, you need Autoconf version 2.71 or higher.
> You have only 2.69, which is very old:
>
> > $ autoreconf --version
> > autoreconf (GNU Autoconf) 2.69
> > Copyright (C) 2012 Free Software Foundation, Inc.
> [...]
>
> well, not sure how to fix that
$ yum provides /usr/bin/autoreconf
Last metadata expiration check: 0:57:11 ago on Tue 09 Jul 2024 06:17:12 AM
MST.
autoconf-2.69-38.el9.noarch : A GNU tool for automatically configuring
source code
Repo : @System
Matched from:
Filename : /usr/bin/autoreconf
autoconf-2.69-38.el9.noarch : A GNU tool for automatically configuring
source code
Repo : appstream
Matched from:
Filename : /usr/bin/autoreconf
$ sudo yum update autoconf
Last metadata expiration check: 1:35:55 ago on Tue 09 Jul 2024 05:39:30 AM
MST.
Dependencies resolved.
Nothing to do.
Complete!
so I hacked a Makefile from Makefile.in and created a minimal config.h to
at least build (most) .o files
I've implemented this, there's a high probability you'll want something
different :)
$ cat test.c
#ifdef SHOW_BUF_OVERFLOW
#define REPORT_SNPRINTF(wr,sz) if (wr >= (int)(sz)) fprintf(stderr,
"%s:%d: caught internal buffer overflow\n", __FILE__, __LINE__)
#else
#define REPORT_SNPRINTF(wr,sz) (void) wr
#endif // SHOW_BUF_OVERFLOW
#include <stdio.h>
int main()
{
char buf[10];
int max;
max = snprintf(buf, sizeof(buf), "%s", "short"); REPORT_SNPRINTF(max,
sizeof(buf));
printf("%s\n", buf);
max = snprintf(buf, sizeof(buf), "%s", "this string is too long to fit");
REPORT_SNPRINTF(max, sizeof(buf));
printf("%s\n", buf);
return 0;
}
$ cc test.c -o test -DSHOW_BUF_OVERFLOW
$ ./test
short
test.c:20: caught internal buffer overflow
this stri
$ cc test.c -o test
$ ./test
short
this stri
here's the patch... please review/scrutinize before accepting
snprintf.patch
Description: Binary data
